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System Security and Port Usage
Polycom, Inc. 539
TCP/UDP 1719 Used by the gatekeeper for H.323 RAS messages
TCP/UDP 1720 Used by the gatekeeper for Q.931 signaling
TCP/UDP 3268 Used to access the Microsoft Active Directory Global Catalog
using StartTLS.
TCP/UDP 3269 Used to access the Microsoft Active Directory Global Catalog
using LDAP-S.
TCP/UDP 3603 Used for HTTP communication with the Polycom PVX client
TCP 5001
TCP 1205
Used to access MGCs for management and monitoring
Port Description